Lindsay Lohan didn't look too bothered by the lawsuit over her Sevin Nyne tanning formula when she headed out shopping yesterday — in fact, she apparently learned something fantastic. She twittered, "I JUST GOT THE BEST BIRTHDAY GIFT/NEWS I'VE EVER RECEIVED IN MY LIFE!!!!" She turned 23 last week with quite a few parties, but she's still finding things to celebrate. Lindsay seems to live in the moment, though she might have some pangs of regret over the success of The Hangover. She apparently turned down the role eventually given to Heather Graham, which would have been a nice comeback for the actress.